Keywords: LOC Evans Steam Engine.jpg of the diagram is inaccurate as the engine was not the United States' first nor was it built in 1801 although Evans' earlier designs bore similarities to this one and did appear from 1801 onwards 2014-04-06 20 46 52 Library of Congress http //memory loc gov/service/pnp/cph/3g00000/3g02000/3g02700/3g02758v jpg Digital ID cph 3a12627 Historic Collection of American Inventors PD-old-100 Uploaded with UploadWizard Oliver Evans Marine steam engines Flued boilers Grasshopper beam engines |